Secret World Project

Fundacja Wspierania Kultury DIFA

Secret World Project                            

Brand: Midland Publishing Ltd

Luftwaffe Secret Projects: Strategic Bombers 1939-1945: v. 2

Air World

Hawker's Secret Projects: Cold War Aircraft That Never Flew

Global Communications/Conspiracy Journal

Secret Black Projects of the New World Order (English Edition)

ARADO'S SECRET PROJECTS (English Edition)        

Outskirts

Funding projects in the third world: Hidden secrets revealed (English Edition)

Ian Allan Publishing

Japanese Secret Projects (English Edition)      

Secret Projects: Ramjet Spitfire (English Edition)

Bathtub Row Press

The Secret Project Notebook (English Edition)    

Greenhill Books

Secret Projects of the Kriegsmarine: Unseen Designs of Nazi Germany's Navy (English Edition)